US2024385359A1PendingUtilityA1
Optical element and optical apparatus
Est. expiryMay 16, 2043(~16.8 yrs left)· nominal 20-yr term from priority
Inventors:Yui Mizutani
G02B 5/3058
40
PatentIndex Score
0
Cited by
0
References
0
Claims
Abstract
An optical element includes a base material having a plurality of convex portions arranged along a first direction, and a conductor provided to each of the plurality of convex portions. Each of the plurality of convex portions extends in a second direction perpendicular to the first direction. In a section including the first direction and a third direction perpendicular to each of the first direction and the second direction, each of the plurality of convex portions has a rectangular shape. Predetermined inequalities are satisfied.
Claims
exact text as granted — not AI-modifiedWhat is claimed is:
1 . An optical element comprising:
a base material having a plurality of convex portions arranged along a first direction; and a conductor provided to each of the plurality of convex portions, wherein each of the plurality of convex portions extends in a second direction perpendicular to the first direction, wherein in a section including the first direction and a third direction perpendicular to each of the first direction and the second direction, each of the plurality of convex portions has a rectangular shape, and wherein the following inequalities are satisfied:
1
2
5
≤
P
≤
160
0.45
≤
Dx
/
Dz
≤
1.2
where P (mm) is an arrangement pitch of the plurality of convex portions, Dz (nm) is a distance in the third direction from a top surface of each convex portion in the section to a top surface of the conductor provided to each convex portion, and Dx (nm) is a thickness of the conductor in the first direction at half a height in the third direction of each convex portion.
2 . The optical element according to claim 1 , wherein the conductor covers at least a part of one side and the top surface of each of the plurality of convex portions in the section.
3 . The optical element according to claim 1 , wherein the following inequality is satisfied:
20.00≤Dx.
4 . The optical element according to claim 1 , wherein the following inequality is satisfied:
4
.
0
≤
h
/
w
≤
9
.
0
where h (nm) is a height in the third direction of the convex portion, and w (nm) is a width of the convex portion at half a height of the convex portion.
5 . The optical element according to claim 1 , wherein the following inequality is satisfied:
0
.
1
5
≤
Dz
/
h
≤
0
.
6
0
where h (nm) is a height in the third direction of the convex portion.
6 . The optical element according to claim 1 , wherein the following inequality is satisfied:
0
.
5
≤
S
/
A
where A is an entire sectional area of the conductor in the section, and S is a sectional area of a portion of the conductor deposited on a side surface of the convex portion in the section.
7 . The optical element according to claim 1 , wherein the following inequality is satisfied:
0.25
≤
Ax
/
P
≤
0
.
6
0
where Ax (nm) is a maximum thickness of the conductor in the first direction above the convex portion in the section.
8 . The optical element according to claim 1 , wherein the conductor covers 60% or more of the top surface of the convex portion in the section.
9 . The optical element according to claim 1 , wherein the base material is a flat plate or a lens having a curved surface with a thickness on an optical axis of 100 μm or more.
10 . The optical element according to claim 1 , wherein the plurality of convex portions is made of a thermoplastic resin.
11 . The optical element according to claim 1 , wherein the following inequality is satisfied:
100 ≤ h where h (nm) is a height in the third direction of the convex portion.
12 . An optical apparatus comprising a plurality of optical elements, wherein at least one of the plurality of optical elements includes:
a base material having a plurality of convex portions arranged along a first direction; and a conductor provided to each of the plurality of convex portions, wherein each of the plurality of convex portions extends in a second direction perpendicular to the first direction, wherein in a section including the first direction and a third direction perpendicular to each of the first direction and the second direction, each of the plurality of convex portions has a rectangular shape, and wherein the following inequalities are satisfied:
1
2
5
≤
P
≤
160
0.45
≤
Dx
/
Dz
≤
1.2
where P (mm) is an arrangement pitch of the plurality of convex portions, Dz (nm) is a distance in the third direction from a top surface of each convex portion in the section to a top surface of the conductor provided to each convex portion, and Dx (nm) is a thickness of the conductor in the first direction at half a height in the third direction of each convex portion.Join the waitlist — get patent alerts
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